Explanation
What this error means
CE-109737-7 is documented as “the USB storage device cannot be recognized.” The console can’t use the USB drive you attached. The common roots are an unsupported format, a port or cable problem, or a drive that doesn’t meet the PS5’s requirements for extended storage — all usually sortable at home.
Official reference: Sony support page for CE-109737-7
Diagnosis
Most likely causes
| Cause | How likely | Fixable at home? |
|---|---|---|
| Drive not formatted in a supported way | Likely | Yes — reformat for PS5 |
| Connected through a hub or to a front port | Likely | Yes — use a rear USB port |
| Drive doesn’t meet USB extended-storage specs | Possible | Sometimes — use a compliant drive |
| Faulty cable or the drive itself | Possible | Sometimes — test another drive |
Repair
How to fix it
Ordered easiest-first. Try the next step only if the error comes back.
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Use a rear SuperSpeed USB port directly
Plug the drive straight into a rear USB port, not through a hub. Extended storage needs a SuperSpeed USB connection to be recognised reliably.
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Format the drive for PS5
For extended storage, go to Settings > Storage > USB Extended Storage > Format as USB Extended Storage. Back up any files first — formatting erases the drive.
⚠ Formatting permanently erases everything on the USB drive. Copy anything you need off it before formatting.
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Check drive requirements
USB extended storage must be USB 3.0 or later and within the PS5’s supported capacity range. Very old or oversized drives may not qualify.
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Try another cable or drive
Swap the cable, or test a different known-good drive, to isolate whether the issue is the cable, the drive, or the console.
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Restart the PS5
A restart clears a transient detection glitch and re-scans attached storage.
Escalation
When it's not your fault
Signs the problem is on Sony's side — or in the hardware — rather than anything you can change:
- The same drive works on a PC but not the PS5 — likely a format or spec mismatch, not a dead drive.
- It only fails through a hub or front port and works in a rear port.
- A different compliant drive is recognised immediately.
Questions
FAQ
Why won’t my USB drive show up?
Most often it’s connected through a hub or front port, or isn’t formatted as USB extended storage. A direct rear-port connection and a PS5 format usually fix it.
Can I store PS5 games on USB?
You can store (and play) PS4 games from USB extended storage, and store PS5 games there to move later — but PS5 games must be played from the internal SSD or an M.2 SSD.
Does formatting delete my files?
Yes — formatting as extended storage erases the drive. Back up anything important before formatting.